On a suggestion I put it on center preference and went for a walk. The lens worked great outside. no focus problems at all. And I kind of love it. I bought it home and it didn't perform as well as it had outside nor as badly as it did when I wrote the first post, so I think it's some combination of the focus not working well in low light and it not playing well with certain settings on my camera. I think I have to continue to test and consider.
Here's the complete gallery of my test walk. The blurriness at the end is the long shutter and motion blur. There's some bad pictures in it because I was mostly trying to test the lens's performanc more than anything else.